Date and Start

Saturday, December 19, 2026. First yard: 8:00 AM EST. The field is limited to 500 runners.

Miami Backyard Ultra is open-ended, with no predetermined yard cap or finishing time.

Solo, Duos and Teams of Four

You can run solo or choose an optional duo or team of four. Each runner registers and pays individually, follows the same Backyard Ultra rules and remains eligible for the individual result. Teams are not relays: everyone runs independently, and the team's score is the sum of all valid completed loops. Duos are ranked against duos and teams of four against teams of four. If one runner stops, their completed loops still count and teammates may continue. Existing registrants can join a team without paying again.

The Basin

Miami Marine Stadium Basin / Virginia Key, Miami, Florida. The race takes place outdoors, not inside the stadium. The main runner area will be in the Miami Marine Stadium parking lot. The planned course combines dirt trail with paved or concrete sections through the Basin setting. Each yard will measure 4 miles and 880 feet, or 6.7056 km, approximately 4.167 miles.

The same course is planned for the entire race, including after dark. The final measured course map, surface notes and nighttime instructions will be published before race day.

Parking and Arrival

Parking and arrival procedures are being finalized. Detailed runner, crew and spectator parking instructions will be included in the Athlete Guide before race weekend.

Race Village and Basecamp

The main runner area will be in the Miami Marine Stadium parking lot. Maximum tent space is 10 x 10 ft and is available first come, first served. Day-before setup is planned; exact access hours and procedures will be published in the Athlete Guide. A registration planning response does not reserve a particular space or service.

A generator is planned, but runner access to electricity or charging is not confirmed. Bring your own power for the equipment you expect to use.

Aid

MBU is mainly self-supported. Bring your own food, nutrition and personal supplies. Water and a limited supply of Näak drink mix will be provided. Final aid locations and procedures will be included in the Athlete Guide. Crew support is only permitted between yards. No specific on-course aid station is confirmed.

Crew and Spectators

You may have up to three crew members with you at a time, and crew members may rotate. Crew support is permitted only between yards in the designated support area. Crew and spectators are welcome in designated areas. During a yard, crew members, spectators, eliminated runners and other non-competitors may not accompany a runner or provide personal aid. Keep the course, starting corral and emergency access routes clear. Final access and overnight procedures will be in the Athlete Guide.

Packet Pickup

Packet pickup times, location and check-in requirements are being finalized. The Athlete Guide and final race-week update will include complete instructions.

Night Running and Weather

If you expect to continue after dark, plan for a headlamp and backup light. Final required-gear and visibility instructions will be included in the Athlete Guide.

Prepare for heat and humidity, sun, rain, changing nighttime conditions and prolonged time outdoors. Follow the Athlete Guide and race-day safety instructions.

Awards

Participant award details coming soon.